Ambrin Corp. expects to receive $$2,000$ per year for $10$ years and $$3,500$ per year for the next $10$ years. What is the present value of this $20-$year cash flow? Use an $11\%$ discount rate.

a$.$ $$27,872$

b$.$ $$15,927$ Incorrect

c$.$ $$32,391$

d$.$ $$19,038$